Which of the following is illegal?
A. SELECT SYSDATE - SYSDATE FROM DUAL;
B. SELECT SYSDATE - (SYSDATE - 2) FROM DUAL;
C. SELECT SYSDATE - (SYSDATE + 2) FROM DUAL;
D. None of these
Answer: Option D
Solution(By Examveda Team)
SELECT SYSDATE - SYSDATE FROM DUAL; outputs 0
SELECT SYSDATE - (SYSDATE - 2) FROM DUAL; outputs 2
SELECT SYSDATE - (SYSDATE + 2) FROM DUAL; outputs -2
This Question Belongs to SQL >> Sql Miscellaneous
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Comments ( 1 )
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